1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef UI_GL_GL_CONTEXT_CGL_H_
6 #define UI_GL_GL_CONTEXT_CGL_H_
7 
8 #include <OpenGL/CGLTypes.h>
9 
10 #include <memory>
11 
12 #include "base/macros.h"
13 #include "ui/gfx/color_space.h"
14 #include "ui/gl/gl_context.h"
15 #include "ui/gl/gl_export.h"
16 
17 namespace gl {
18 
19 class GLSurface;
20 
21 // Encapsulates a CGL OpenGL context.
22 class GL_EXPORT GLContextCGL : public GLContextReal {
23  public:
24   explicit GLContextCGL(GLShareGroup* share_group, int core_profile_number = 0);
25 
26   // Implement GLContext.
27   bool Initialize(GLSurface* compatible_surface,
28                   const GLContextAttribs& attribs) override;
29   bool MakeCurrent(GLSurface* surface) override;
30   void ReleaseCurrent(GLSurface* surface) override;
31   bool IsCurrent(GLSurface* surface) override;
32   void* GetHandle() override;
33   void SetSafeToForceGpuSwitch() override;
34   bool ForceGpuSwitchIfNeeded() override;
35   YUVToRGBConverter* GetYUVToRGBConverter(
36       const gfx::ColorSpace& color_space) override;
37   void SetVisibility(bool visibility) override;
38 
39  protected:
40   ~GLContextCGL() override;
41 
42  private:
43   void Destroy();
44   GpuPreference GetGpuPreference();
45 
46   void* context_ = nullptr;
47   GpuPreference gpu_preference_ = GpuPreference::kLowPower;
48   std::map<gfx::ColorSpace, std::unique_ptr<YUVToRGBConverter>>
49       yuv_to_rgb_converters_;
50 
51   int screen_ = -1;
52   int renderer_id_ = -1;
53   bool safe_to_force_gpu_switch_ = true;
54   bool is_high_performance_context_ = false;
55 
56   // Debugging for https://crbug.com/863817
57   bool has_switched_gpus_ = false;
58 
59   int core_profile_number_ = 0;
60 
61   DISALLOW_COPY_AND_ASSIGN(GLContextCGL);
62 };
63 
64 }  // namespace gl
65 
66 #endif  // UI_GL_GL_CONTEXT_CGL_H_
67